Envelop-making machine.



E. G. STAUDE.

ENVELOP MAKING MACHINE.

I APPLICATIONHLED JULY 9,1910- 1,179,573. I Patented Apr. 18, 1916.

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E. G. STAUDE.

ENVELOP MAKING MACHINE.

APPLICATION FILED JULY 9- I910.

Patented Apr. 18,1916

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ENVELOP MAKING MACHINE. APPILICATION FILED JULY 9.1910.

Patented Apr. 18; 1916.

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NVELOP MAKING MACHINE.

APPLICATION FILED JULY 9. I910.

Patented Apr. 18, 1916.

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OF MINNEAPOLIS, MINNESOTA, ASSIGNOR, BY MESNE EDWIN GUSTAVE STAUDE,

ASSIGNMENTS, TO UNITED STATES ENVELOPE COMPANY, OF WORCESTER, i

MASSACHUSETTS, A CORPORATION.

ENVELOP- MAKING MACHINE.

Specification of .Letters Patent. Patented Apr, 18, 191 6.

Application filed July 9, 1910. Serial No. 571,248.

To all whom it may concern Be it known that I, EDWIN G: Minneapolis, Hennepin county, Minnesota, have invented certain new and useful Improvements -in Envelop-Making Machines, of which the following is a specification.

The object of my invention is to provide a machine wherein an envelop blank can be accurately creased, folded and pasted by continuous operation.

A further object of this invention is to provide a construction which .shall positively and accurately deliver a side folded envelop shaft 13 through the medium of the link to a secondary foldingmechanism'to fold belt 15', and the shafts 14 and 16 are operthe ends. ated by thestud shaft 21 through the link A further object is to provide a machine belt 21. Both the stub shafts 13 and 21 which can be easily andquickly adapted for are adapted to receive a crank 21" for openenvelops of different sizes. ating them. See Fig. 6. By revolving these Further objects of the invention will apshafts the brackets 17 and 18 are moved pear from the following detailed descripback and forth toward and from one another tion. 4 to contract or widen the space between the The invention consists generally in vafeed chains which operate above the belt rious constructions and combinations, all as 11 and are designated by numerals 22 and described and particularly 23 and pass around sprockets 24 and 25 carpointed out in the claims. ried by said brackets. The brackets 17 and In the accompanying drawings forming 18 have idler pulleys 26, 27, 28 and 29, the part of this specification, Figure l'is a plan two former being within the upper run of "the belt 11 and the two latter outside the run View of an-envelop making machine embodying my invention, Fig. '2 is a similar of the belt, and the shaft 10 is carried by arms 30 depending view of one end of the machine, illustrating the mechanism for changing the direction of has an operating handle 32 by means of which the shaft 31 may be rocked and the movement of the envelop, Fig. 3 is a sectional view taken on the line ww of Fig. belt 11 tensioned or released. Obviously, 7 view on the line y-y the movement of the brackets 17 and 18 will of Fig. 3, Fig. 5 is a detail view showing not affect the tension of the belt, as the strain the manner of mounting the screw shafts, thereon will be released by one idler pulley as fast as it is taken up by the other. The

details showing the manner of adjusting the mechanism for moving brackets 17 and 18 on one side of the mathe envelop at'right angles to its previous chine have horizontally pro ecting arms 17 direction, Figs. 8 and 9 are details showing provided with slots 18 .Fig. 3 in which a modified construction of the method for bolts supporting the sprockets 25 on one holding the blank in accurate register. side of the machine are mounted and are In the drawing, 2 represents the feeder, capable of adjustment in said slots. The 3 the creasing and scoring mechanism, 4 the movement of the brackets 17 toward and folders and 5 and 5 the belts for feeding the from the brackets 18 is effected by the revoblanks through the folders. (See Fig. 1.) lution of the screw shafts and by this means 6 is a frame arranged on the discharge side of the aforesaid blank folding mechanism and supporting shafts 7 and '8 provided with rolls 9 and 10 around which a feed belt 11 passes. This belt moves parallel with respect to the first folding mechanism STAUDE, of

the fiat surface of the carrier belt is increased or decreased in area according to the size of the envelop or blank, and the position of the stop and the pressure roll is simultaneously changed to adapt them for the blank or envelop.

the position and size of from the shaft 31, which belts 22 and 23 are brackets 17 and blocks The sprockets 24 are carried by hubs 33 tion of the screws, the hubs 33 will be moved also and with them" the belts 22 and 23, thus increasing or decreasing the distance between these belts according to the length of the envelop. At suitable intervals the provided with projecting pins 37 which engage the longitudinal edge of the envelop and feed it sidewise toward the end flap folding mechanism, as shown in Fig. 1.

A driven shaft 38 carries scoring wheels 39 splined thereon between which and similar wheels 40 on a shaft 41 the envelop is fed sidewise by the feed belts 22 and 23, and upon leaving the scoring wheels 39 and 40 the envelops pass to feed belts 42 and 43, which convey them to the folders 44, where the envelop is completed.

Upon leaving the feed belts 5 and 5 the envelop passes to pressure rolls 45 and 46 Fig. 4 and from thence upon an adjustable rod 47 having a projecting finger 48 which temporarily supports the forward end of the envelop, holding it out of contact with the feed belt 22 beneath until the forwardend has been engaged by the opposite feed belt 23. A bar 49 is supported by the 50 are adjustably mounted on the edge of said bar and are capable of sliding back and forth thereon transversely with respect to the belt '11. rms 51 are adjustably mounted in said blocks and capable of adjustment therein lengthwise of the belt 11, being secured by set screws 52. Rods 53 are adjustably mounted in the outer ends of said arms and carry a pressure roller 54 that is adapted to bear lightly on the surface of the envelop and thereby secure perfect register by securely holding the partially folded blank against the bar 49.

The form of carrier may be varied; in some instances a stationary platform might be used with success in place of the pressure roll. Any other suitable device may be utilized which will hold the blank down on the surface and prevent it from jumping back when it contacts with the stop. The pressure roller 54,. or other device which may be used in place of it, not only prevents the blank from rebounding when it contacts with the stop, but it alSO prevents upward buckling of the blank. The bar 49 rests upon arms 49 Fig. 8 carried by one pair of the brackets and these arms have slots 49" therein in which the bar is adjustable by means of bolts 50 Fig 2.

This adjustment of the bar enables me to move the stop toward or from the feed belts to regulate the time of engagement of the blank with the stop according to the size and shape of the blank.

I have found that the friction of the belt 11. is not suflicient to hold the envelop blank against the bar 49 so that when the envelop chain belts 22 and 23 the creasing devices 39- and 40 will not always crease at the proper point, but, with the addition ofthe is advanced by the carrier pins 37 on the i I above roller construction 54, I am able to I produce a perfectly creased blank.

I have shown a slight modification Fig. 9 for producing the above result, wherein I utilize a suitable brush 56 mounted on a shaft 57 and positively driven by the friction pulley 58 riding on the belt 11. A stop device is adjustably mounted on the edge of the bar 49 in the path of the envelop and is adapted to arrest upward movement of the envelop.

I do not confine myself to the precise construction herein shown, as the same may be modified in many ways by any one skilled in the art.

I claim as my invention 1. The combination, with an initial blank feeding means and means for folding the blank, of a secondary feeding means operating at an angle to said initial feeding means, a stop in the path of the blank delivered by said initial feeding means, means for exerting a pressure on the midd le portion of the blank and preventing rebound of the blank upon contacting with said stop, and a secondary folding mechanism arranged to receive the blank from said secondary feeding mechanism.

2. The combination, with an initial blank feeding means and means for folding the side flaps of the blank, of a secondary feeding means operating transversely and continuously with respect to said initial feeding means and adapted to receive the partially folded blank and move it sidewise, means for centering the blank on said secondary feeding means, means for holding the blank in place on said secondary feeding means, and pasting and folding mechanisms adapted to receive the blanks from said secondary feeding means.

3. In an envelop machine, an initial blank feeding'ineans, means for folding the side flaps of an envelop blank, a secondary feeding means operating transversely with respect to said initial feeding means and arranged to receive the partially folded blank and operating to feed the said blank sidewise, a pressure device extending from side to side of the blank and arranged to ;hold the blank on said secondary feeding means, arms whereon said pressure device is mounted, said arms being adjustable 13o posited on said carrier,

ranged to hold the blank and means and move it sidewise,

' ing means and lengthwise of said secondary feeding means, and creasing, pasting and folding mechanism for the end flaps adapted to receive the blanks from said secondary feeding means.

4. In a machine of the-class described, the combination, with means for feeding the blanks and means for creasing, pasting and folding the side flaps, of an endless carrier operating in the same direction as said feeding means and having a surface adapted to receive the blanks from said feeding means, a stop .device in the path of the blank dea pressure roll aron said carrier having a continuous movement transversely of .i said carrier and engaging the edges of the blanks to move them at right angles substantially with respect to said feeding means.

5. The combination, ing the blanks and means for creasing, pasting and folding the side-flaps, of a carrier, a pressure roll supported above the same and operating. to hold blank down upon said carrier and means whereby said pressure roll is rendered adjustable transversely of said carrier.

6. The combination, with an initial feeding means and mechanism for folding the side flaps of the blank, of carriers operating transversely of said initial feeding means and arranged to engage the blank a stop device arranged in the pathof the blank fed by said initial feeding means to check the momentum of the blank upon delivery tosaid secondary feeding means, and means operating to prevent the rebound of the blank upon contacting with said stop.

7. The combination, with an initial feedside flaps of a blank, of a secondary feeding means operating transversely of said initial feeding means and arranged to receive the blank and move it sidewise, a stop device arranged to check the momentum of the blank as it is delivered to said secondary feeding means, means bearing on the top of the blank and extending thereon from side to side and preventing the rebound of the blank upon contacting with said stop, and a secondary folding mechanism arranged to receive the blank from said secondary feeding means.

8. The combination, with feeding. means and'means for folding the blank, of a secondary feeding means operating transversely with respect to said initial feedingmeans, means for supporting the rear portion of a blank out of engagement with the adjacent side of said secondan initial blank ary feeding means until the forward portion of the blank has been engaged by the other side of said secondary feeding means,

with means for feed-- the full width of the mechanism for folding the justable lengthwise of said secondary and a secondary folding mechanism .arranged to receive the blank from said secondary feeding means.

9. The combination, with an initial blank feeding means and means for creasing, pasting and folding the side flaps, of a carrier operating in line substantially with said initial feeding means, feed belts operating transversely with respect to said carrier, means supporting the rear portion of a blank out of contact with the contiguous.

feed belt until the forward portion of the blank is delivered to the other feed belt, said feed belts operating to move the blank sidewise, and secondary creasing, pasting and folding devices for the end flaps of the blank arranged to receive it from said feed belts.

10. The combination, feeding the blanks, of a carrier, operating transversely with respect thereto, a rod having a projecting finger, said rod being capable of rotation in its bearings, said finger en aging and supporting the rear portion of the blank out of contact with one of said feed belts until the forward portion of the blank has passed into engagement with the other feed belt.

11. The combination, with an initial feeding means, and means for folding the side flaps of a blank, of a secondary feeding means arranged to receive the blank and move it sidewise, astop device in the path of the blank for checking its momentum upon its delivery to said secondary feeding means, said stop device being adjustable lengthwise of said secondary feeding means, means bearing on the top of the blank and extending from side to side thereof and preventing the rebound of the blank upon contacting with said stop, and a. secondary folding mechanism for the end flaps arranged to receive the blank from said secondary feeding means.

12. The combination, with an initial blank feeding means and means for creasing, pasting and folding the side flaps, of a secondary feeding means arranged to receive and feed the the "path of the blank to check its momentum upon its delivery to said secondary feeding means, means resting on the top of the blank and extending from side to side and preventing the rebound of the blank upon contact with said stop, said stop and said rebound preventing means beingf a3- ee ing means, and secondary creasing, pasting and folding devices for the end flaps of the blank.

13. The combination, with an initial blank feeding means and means for creasing, pasting and folding the side flaps, of a member having a fiat surface whereon'the partially folded blank is delivered, feed belts operatfeed belts with means for ing transversely of said surface and of said initial feeding means, means resting on the top of the blank and having a comparatively long bearing surfacethereon for pressing the blank downwardly upon said fiat surface and said feed belts, said belts operating to move said blank sidewise, and secondary creasing, pasting and folding devices for the end flaps of the blank arranged to receive it from said feed belts.

14:. The combination, with an initial blank feeding means and means for folding the sidejflaps, of a member having a flattenedsurface whereto the blank is delivered, feed belts operating transversely of said surface and of said initial feeding means and operating to move the blank sidewise on said surface, means for, centering the blank on said feed belts, means resting on the top of the blank and extending from side to side surface arranged to receive the-blank from said initial feeding means, feed belts operating transversely of said flattened sur ace and of said initial feeding means and adapted to move the blank sidewise, a stop provided in the path of the blank for checking its longitudinal movement, means to bear on the top of the blank for pressing the blank downwardly upon said feedbelts and said surface and preventing the rebound of the blank upon contacting with said stop.

16. The combination, with an initial blank feeding means and means for creasing, pasting and folding the side flaps, of a member having a flattened surface arranged to receive the'blank from said initial feeding means, feed belts operating transversely of said flattened surface and of said initial.

feeding means and adapted to move the blank sidewise, a stop provided in the path of the blank for checking its longitudinal movement, means to bear on the top of the blank for pressing the blank downwardly upon said feed belts and said surface and preventing the rebound of the blank upon contacting with. said stop, and creasing, pasting and folding devices for the end flaps of said blank arranged to receive it from said feed belts.

17 The combination, with means for feeding the blanks, of brackets arranged in pairs, screw shafts supportingv said brackets,a carrier supported by said brackets and having a surface whereon the blanks are delivered, a stop device supported by said brackets and movable transversely of said carrier, and feed belts also carried by said brackets and operating transversely with respect to said carrier and arranged to en- I gage the blanks and feed them laterally.

, 18. The combination, with an initial blank feeding means and means for folding the side flaps, of a carrier operating in line substantially with said initial feeding means,

feeding means operating transversely of 19. The combination, with an initial blank feeding means and means for folding the side flaps, of a carrier operating in line substantially with said initial feeding means, feed belts operating transversely of said carrier, means for supporting the rear portion of a blank out of contact with one belt until its forward portion is moved by said carrier into contact with the other belt, a

. stop device for limiting the endwise movement of the blank, said belts operating to move said blank sidewise, and means for creasing, pasting and folding the end flaps of. the blank.

20. The combination, with an initial blank feeding means, and means for folding the side flaps, of a carrier operating in line substantially with said initial feeding means, feed belts operating transversely of said carrier, means arranged to support the rear portion of a blank out of contact with one belt until the forward portion of the blank is moved by said carrier into contact with the other belt, said belts operating to feed the blanks sidewise, and a pressure device arranged to hold the blank downwardly upon said carrier and said feed belts.

21. The combinatiomwith an initial blank feeding and folding means, of a member having a flattened surface, feeding means operating transversely of said flattened surface and to which flattened surface and feeding means the partially folded blank is delivered, said feeding means operating to move the blank sidewise, and means for increasing or decreasing the area of said fiattened surface and simultaneously moving said feeding. means to adapt it and said flattened surface for blanks of different sizes.

' 22. The combination, with an initial blank feeding and folding means, of a member having a blank-receiving surface, a secondary feeding means. operating over said feeding means, means for increasing or decreasing the area of sa1d blank-receiving surface to adapt it for blanks of different sizes, and a secondary folding means ar-' ranged to receive theblank from said secondary feeding means. a

- folding the side flaps,

23. The combination, with an initial blank feeding means and means for folding the side flaps, of a carrier belt operating in line substantially with said initial feeding means and having afiattened surface, feed belts operating transversely of said flattened surface, said flattened surface and said belts being arranged to receive the partially folded blank, and said belts moving the blank sidewise, and mechanism for increasing or decreasing the area of the vflattened surface of said belt and moving said feed belts apart or drawing them together, and secondary folding mechanism for the end flaps of said'blank.

2a. The combination, with an initial envelop blank feeding means and means for. ofa member having a flattened surface, feed belts operating transversely with respect to said flattened surface and to which flattened surface and belts the partially folded blank is delivered, said feed belts operating to move the blank sidewise, a stop arranged to check the momentum of the blank, means for holding the blank down on said flattened surface and said feed belts and preventing its rebound upon contacting with said stop, and means for increasing or decreasing the area of said flattenedsurface and the distance between said feed belts to adaptithem for different length,

ing means and mechanlsmfor folding the envelop blanks of diflt'erent length.

25. The combination, with an initial blank feeding means and means for creasing, pasting and folding the side flaps, of an endless carrier, screw shafts, brackets mounted thereon in pairs and movable toward and from one another, each pair of brackets having means contacting with said carrier on opposite sides thereof and forminga. flattened surface, the movement of either pair of brackets being permitted without changing the tension of said carrier, feed belts supported by said brackets and operating transversely with respect to said carrier, the movement of said brackets increasing or decreasing the area of said flattened surface and separating said feed belts from one another or drawing them together to adapt the device for blanks of and secondary creasing, pasting and folding mechanism for the end flaps arranged to receive the blank from said feed belts.

26. The combination, with an initial feedblank, of a secondary feeding side flaps of a transversely with respect means operating to said initial feeding means'and arranged to receive the blank and move it sidewise, blocks adjustable lengthwise of said secblank delivered to said secondary feeding means, means arranged to contact with the middle portion of the blank and prevent upward buckling and rebound thereof upon its engagement with said stop, and a secondary folding mechanism arranged to receive the blank" from said secondary feeding means.

28. The combination, with an initial blank feeding means and means for folding the blank, of carriers operating at an angle to said initial feeding means, a stop in the path of the blank delivered by said init Iial or feeding means to said carriers, means exerting a pressure on the top of the blank and preventing its rebound upon contacting with said stop and holding said blank on said carriers, and a secondary folding mechanismarranged to receive the blank from said carriers.

29. The combination, with an initial blank feeding means and means for folding the blank, of a secondary feeding means operating at an angle to said initial feeding means, a stop in the path of the blank delivered to said secondary feeding means, means operating at a greater speed than said initial feeding means for projecting the blank into engagement with said stop, means preventing buckling and rebound of the blank upon contacting with said stop,

and a folding mechanism arranged to resurface to adapt it for blanks of different sizes, a secondary feeding means for removing the blanks from said blank receiving surface, and a folding means arranged to receive the blanks from said secondary feeding means.

In witness whereof, I have hereuntov set .my hand this 2d day of July, 1910.

. EDWIN GUSTAVE STAUDE. Witnesses;

- G. E. SORENSEN,

J. A. BYRNES.

iis 

